# Copyright (c) Alibaba, Inc. and its affiliates.
# !/usr/bin/env python
import os
from setuptools import find_packages, setup
from typing import List


def readme():
    with open("README.md", encoding="utf-8") as f:
        content = f.read()
    return content


version_file = "swift/version.py"


def get_version():
    with open(version_file, "r", encoding="utf-8") as f:
        exec(compile(f.read(), version_file, "exec"))
    return locals()["__version__"]


def parse_requirements(fname="requirements.txt", with_version=True):
    """
    Parse the package dependencies listed in a requirements file but strips
    specific versioning information.

    Args:
        fname (str): path to requirements file
        with_version (bool, default=False): if True include version specs

    Returns:
        List[str]: list of requirements items

    CommandLine:
        python -c "import setup; print(setup.parse_requirements())"
    """
    import re
    import sys
    from os.path import exists

    require_fpath = fname

    def parse_line(line):
        """
        Parse information from a line in a requirements text file
        """
        if line.startswith("-r "):
            # Allow specifying requirements in other files
            target = line.split(" ")[1]
            relative_base = os.path.dirname(fname)
            absolute_target = os.path.join(relative_base, target)
            for info in parse_require_file(absolute_target):
                yield info
        else:
            info = {"line": line}
            if line.startswith("-e "):
                info["package"] = line.split("#egg=")[1]
            else:
                # Remove versioning from the package
                pat = "(" + "|".join([">=", "==", ">"]) + ")"
                parts = re.split(pat, line, maxsplit=1)
                parts = [p.strip() for p in parts]

                info["package"] = parts[0]
                if len(parts) > 1:
                    op, rest = parts[1:]
                    if ";" in rest:
                        # Handle platform specific dependencies
                        # http://setuptools.readthedocs.io/en/latest/setuptools.html#declaring-platform-specific-dependencies
                        version, platform_deps = map(str.strip, rest.split(";"))
                        info["platform_deps"] = platform_deps
                    else:
                        version = rest  # NOQA
                    info["version"] = (op, version)
            yield info

    def parse_require_file(fpath):
        with open(fpath, "r", encoding="utf-8") as f:
            for line in f.readlines():
                line = line.strip()
                if line.startswith("http"):
                    print("skip http requirements %s" % line)
                    continue
                if line and not line.startswith("#") and not line.startswith("--"):
                    for info in parse_line(line):
                        yield info
                elif line and line.startswith("--find-links"):
                    eles = line.split()
                    for e in eles:
                        e = e.strip()
                        if "http" in e:
                            info = dict(dependency_links=e)
                            yield info

    def gen_packages_items():
        items = []
        deps_link = []
        if exists(require_fpath):
            for info in parse_require_file(require_fpath):
                if "dependency_links" not in info:
                    parts = [info["package"]]
                    if with_version and "version" in info:
                        parts.extend(info["version"])
                    if not sys.version.startswith("3.4"):
                        # apparently package_deps are broken in 3.4
                        platform_deps = info.get("platform_deps")
                        if platform_deps is not None:
                            parts.append(";" + platform_deps)
                    item = "".join(parts)
                    items.append(item)
                else:
                    deps_link.append(info["dependency_links"])
        return items, deps_link

    return gen_packages_items()


if __name__ == "__main__":
    install_requires, deps_link = parse_requirements("requirements.txt")
    extra_requires = {}
    all_requires = []
    extra_requires["eval"], _ = parse_requirements("requirements/eval.txt")
    extra_requires["swanlab"], _ = parse_requirements("requirements/swanlab.txt")
    extra_requires["seq_parallel"], _ = parse_requirements(
        "requirements/seq_parallel.txt"
    )
    all_requires.extend(install_requires)
    all_requires.extend(extra_requires["eval"])
    all_requires.extend(extra_requires["seq_parallel"])
    all_requires.extend(extra_requires["swanlab"])
    extra_requires["all"] = all_requires

    setup(
        name="ms_swift",
        version=get_version(),
        description="Swift: Scalable lightWeight Infrastructure for Fine-Tuning",
        long_description=readme(),
        long_description_content_type="text/markdown",
        author="DAMO ModelScope teams",
        author_email="contact@modelscope.cn",
        keywords="python, petl, efficient tuners",
        url="https://github.com/modelscope/swift",
        packages=find_packages(exclude=("configs", "demo")),
        include_package_data=True,
        package_data={
            "": ["*.h", "*.cpp", "*.cu"],
        },
        classifiers=[
            "Development Status :: 4 - Beta",
            "License :: OSI Approved :: Apache Software License",
            "Operating System :: OS Independent",
            "Programming Language :: Python :: 3",
            "Programming Language :: Python :: 3.8",
            "Programming Language :: Python :: 3.9",
            "Programming Language :: Python :: 3.10",
            "Programming Language :: Python :: 3.11",
            "Programming Language :: Python :: 3.12",
        ],
        license="Apache License 2.0",
        tests_require=parse_requirements("requirements/tests.txt"),
        install_requires=install_requires,
        extras_require=extra_requires,
        entry_points={
            "console_scripts": [
                "swift=swift.cli.main:cli_main",
                "megatron=swift.cli._megatron.main:cli_main",
            ]
        },
        dependency_links=deps_link,
        zip_safe=False,
    )
